Tool for repairing the valve-seats of faucets and the like



Dec. 19, 1933. M. P. CORVIN 1,939,767

TOOL FOR REPAIRING THE VALVE SEATS 0F FAUCETS AND THE LIKE Filed July 27, 1952 INVENTOR- Q M WM Patented Dec. 19, 1933 TOOL' FOR REPAIRING THE VALVE-SEATS OF FAUCETS AND THE LIKE Mark P. Corvin, Bluefield, W. Va., assignor of one-half to Rush M. Corvin, Bluefield, W. Va.

' Application July 27, 1932. Serial No. 625,140

3 Claims.

The object of my invention is to provide a tool, complete in'itself, which every plumber and householder can use to repair the worn' valve-seats of faucets. It being a known fact that after the water faucets, such as are found 5 in the homes, hotels and elsewhere, have been in use for some time, the seat or ring against which the washer of the valve stem must fit, becomes, worn and presents an irregular or uneven surface to the washer. The result is that 10 the washer, which is made usually of leather, fiber or hard rubber, can not make the seat in the faucet water-tight. By the mere replacing or anew washer, the trouble can not be remedied, due to the worn valve seat inthe faucet on which the washer bears. The tool of my present invention is primarily to be an aid to the householder and plumber in enabling them to repair the worn valve-seats in the faucets with the saving of much time and with accuracy.

In the accompanying drawing is a preferred embodiment of my invention in which- Figure 1 shows a side elevation of the valvereseating tool containing my present invention;

Figure 2 is a central side elevation of same, and

Figure 3 showing top side view of ratchet handle-bar.

Figure 2 being a central side elevation of the valve-reseating tool is described as follows: 1 30 showing the hand handle-knob fastened to a semi sleeve 3 by means of screw 2 allowing knob 1 toturn free from semi sleeve 3. Semi sleeve 3 is anchored to stem 10 by means of screw 4, 3 being threaded so as to allow screw 4 to embed itself in the counter-sink D on shaft 10.

Shaft 10 at C is of hexagonal design, thereby allowing hexagon center of ratchet wheel 9 of handle-bar 5 to slip over same and rendering a wrench effect upon shaft 10.

Collar B on shaft prevents ratchet wheel 9 from sliding down shaft 10 toward base 13.

Cap 11 is demountable from base 13 at E. Base 13 and cap 11 are made with a male and female thread respectively, and are hollowed in such a way as to allow the installation of the spring-clutch 12, one end of which is anchored to the base 13 at A by the prolongation of the end of the clutch-spring 12 forced into a counter sink in the base 13.

The shaft 16 passes through the coil spring 12 and is snugly engaged thereby to create a frictional drag between the spring and shaft.

F on base 13 and G on cap 11 are centering guide bearings for stem 10. The two bearings however have a tendency to prevent the chattering of the stem 10 which would occur wit but one guide bearing.

Base 13 has a female thread H and has an inside diameter to fit the outer wall I of the faucet 16 after the faucet cap has been removed. By screwing base 13 or adapter 14 on the outer wall I of faucet 16, the cutter 15 which is mountedon the shaft 10 will be, in direct alignment with the valve-seat L of the faucet 16. Adaptable bushing 14 is to be made of various sizes, either larger than base 13 at H or smaller, the inside diameter 0 ofjadaptable bushings 14 are to be of the same size and thread as the outer wall of the faucet to be repaired. However each adaptable bushing is to be made with the same size neck M with a male thread of the same kind as base 13 has at point H, and with a guide bearing for the shaft 10.

As illustrated in Fig. 2, when reciprocatory or intermittent rotary movement is applied to shaft 10 in a clock-wise fashion the volutions of the spring-clutch 12 unwind with respect to shaft 10 and the shaft 10 continues to rotate to the right, and consequently cutter 15 will rotate in the same direction.

However when the handle-bar 5 is reversed or turned to the left pulling shaft 10 with it the volutions of the spring-clutch 12 contract or wind about the shaft 10 and consequently shaft 10 remains stationary until the movement of the handle-bar 5 is again turned to the right. In other words, the spring 12 will prevent the shaft 10 from rotating in one direction while permitting rotation in the opposite direction after the fashion of a one-way clutch. The frictional drag between the spring 12 and shaft 10 causes this winding or unwinding about the shaft 10. The turning of the handle-bar 5 to the left is pos sible for pawl 7 will slip over the teeth in ratchet 9 on a backward motion, illustrated in Fig. 3 of the top side elevation of the handle-bar 5.

The operation of my new tool will be clear from the foregoing and may be briefly stated as follows:

After the tool has been placed in position by screwing base 13 or adapter 14 over the outer wall I of faucet 16 the handle-bar 5 is pulled toward the operator or in a clockwise direction. This movement of the handle-bar 5 through the pawl 7 and ratchet 9 produces a corresponding movement of the stem 10 and the cutter 15. During the forward movements of the handlebar the pawl 7 is held in firm engagement with at point 15. 'thefuse of this cutter; but

one of the teeth in the ratchet 9, so that the handle-bar 5, the stem 10 and the cutter 15 move as a single member. During this operation the teeth J of the cutter 15 cut into and thereby smooth the upper surface of the uneven valve-seat L, it being understood that the operator bears down upon the hand-knob l to hold the cutter teeth J firmly against the valve-seat L. The cutter teeth J being made of hard material, such as steel, only a few turns of the stem will be required for the cutter 15 to smooth the valve-seat L which is made: of softer material, as brass or a similar composition.

It may be understood that the cutter 15 may be substituted to fit any size or style'valve-seat. The movement of the handle-bar 5 to the right will be but through ;a small angle, whereupon the operator will turn the handle-bar 5 from him or to the left to place it in position for the next forward movement. During the return .of the handle-bar 5 there will be no movement of the stem 10 and cutter 15, for the volutions of the spring-clutch l2 contracts about the shaft 10. Spring-clutch 12 being anchored at A to base'13prevents the rotation in either direction of said spring-clutch.

I am aware that prior to my invention faucet valve-reseating tools have been made with a similar cutting tool as shown in Figures 1 and 2 I therefore do not claim broadly What I claim as my invention, and desire to secure by LettersPatent, is-

1.In a valve seat grinding tool, a casing adopted to engage a valve body, a shaft extending through said casing, a cutter on the end of 2. In a valve seat grinding tool, a casing adapted to engage a valve body, a rotatable shaft extending through the casing and having a cutter thereon, means for forcing the cutter into contact with a valve seat Within said valve body, means for rotating the shaft and cutter, a coil spring locking device having one of its ends secured to the casing, said coil spring surrounding the shaft and snugly engaging the same,

whereby rotation of the shaft in one direction tends to unooil the spring to permit free rotation of the shaft, and rotation in the opposite direction wraps the spring tightly about the shaft to prevent rotation thereof.

3.111 a valve seat grinding tool, a casing adapted to engage a valve body, a rotatable shaft extending through the. casing and having a cutter threon, means for'forcing the cutter into contact with a valve seat within said valve body, means for rotating the shaft and cutter, a coil spring locking device within the casing having one of its ends secured to the casing, said coil spring surrounding the shaft and snugly engaging the same, whereby rotation of the shaft in one direction tends to uncoil the spring to permit free rotation of the shaft, and rotation in the opposite direction wraps the spring tightly about the shaft to prevent rotation there-..

of, said casing being split'to permit access to the coil spring locking device.

MARK P. CORVIN.

sol 

